Re: where's the FMECA
"Where is the FMECA (failure mode effects and criticality analysis) for this system and for the aircraft? Inquiring minds want to know."
Good question.
Is there any such thing these days, given the fascination for "light touch regulation" and "self certfication" and so on?
Even if the FMECA processes and documents do still exist, are they made readily available to the regulatory authorities?
Or has someone really convinced the regulators that "it's the same aircraft with the same subsystems as it was before the new improved but still the same" version?
Last time I saw an FMECA for a safety critical aircraft system was a few years ago. It had been value-engineered offshore to a subcontracting company who had difficulties distinguishing between an input to, and an identically named output from, various subsystems. All done in Excel too.
It wouldn't have mattered quite as much if the "comprehensivess and correctness of the FMECA" hadn't been used to justify eliminating much of the actual *testing of the real system*. Ooops.
Biting the hand that feeds IT
